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我有一個JTabbedPane，它有4個選項卡。每個選項卡都有一個JTable。我試圖爲JTabbedPane設計一個自定義的FocusTraversalPolicy，這樣我可以在我關注表格的最後一個單元格時按下標籤頁將我帶到下一個選項卡。我搜查了很多，但沒有找到可以與之合作的具體內容。JTabbedPane FocusTraversalPolicy
tabbedPane.setFocusCycleRoot(true);
tabbedPane.setFocusTraversalPolicyProvider(true);
tabbedPane.setFocusTraversalPolicy(new MyPanelFocusTraversalPolicy(tabbedTables));
以下是我的自定義焦點遍歷策略。
private class MyPanelFocusTraversalPolicy extends FocusTraversalPolicy{
private Vector<Component> order;
public StateWithholdingPanelFocusTraversalPolicy(List<CopyWorkerSingleTablePanel> table){
this.order = new Vector<Component>(table.size());
this.order.addAll(table);
}
@Override
public Component getComponentAfter(Container aContainer, Component aComponent) {
return order.get(order.indexOf(aComponent)+1);
}
@Override
public Component getComponentBefore(Container aContainer, Component aComponent) {
return order.get(order.indexOf(aComponent)-1);
}
@Override
public Component getFirstComponent(Container aContainer) {
return order.get(1);
}
@Override
public Component getLastComponent(Container aContainer) {
return order.lastElement();
}
@Override
public Component getDefaultComponent(Container aContainer) {
return order.get(0);
}
}
而且，這些JTable中被實例化別的地方，我已經覆蓋Tab鍵綁定關注下一個組件上最後一個單元格時。我已經做到了，以便在其他屏幕上也可以使用。
KeyStroke keyStroke = KeyStroke.getKeyStroke("TAB");
Object actionKey = copyWorkerTable.getInputMap(JTable.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT).get(keyStroke);
final Action action= table.getActionMap().get(actionKey);
Action wrapper = new AbstractAction() {
@Override
public void actionPerformed(ActionEvent e) {
if(table.getSelectedRow() >= table.getRowCount()-1 && table.getSelectedColumn() >= table.getColumnCount()-1) {
if(!table.isCellEditable(table.getSelectedRow(),table.getSelectedColumn())){
table.transferFocus();
}else{
table.getCellEditor(table.getSelectedRow(),table.getSelectedColumn()).stopCellEditing();
table.transferFocus();
}
}else{
action.actionPerformed(e);
}
}
};